C8051F960-B-GM Datasheet, PDF (102/492 Pages) Silicon Laboratories – Ultra Low Power 128K, LCD MCU Family

C8051F96x
SFR Definition 5.15. REF0CN: Voltage Reference Control
Bit
7
6
5
4
3
2
1
0
Name
REFGND
REFSL
TEMPE
Type
R
R
R/W
R/W
R/W
R/W
R
R
Reset
0
0
0
1
1
0
0
0
SFR Page = 0x0; SFR Address = 0xD1
Bit Name
Function
7:6 Unused Read = 00b; Write = Don’t Care.
5 REFGND _{Analog Ground Reference.}
Selects the ADC0 ground reference.
0: The ADC0 ground reference is the GND pin.
1: The ADC0 ground reference is the P0.1/AGND pin.
4:3 REFSL _{Voltage Reference Select.}
Selects the ADC0 voltage reference.
00: The ADC0 voltage reference is the P0.0/VREF pin.
01: The ADC0 voltage reference is the VDD pin.
10: The ADC0 voltage reference is the internal 1.8 V digital supply voltage.
11: The ADC0 voltage reference is the internal 1.65 V high speed voltage reference.
2
TEMPE _{Temperature Sensor Enable.}
Enables/Disables the internal temperature sensor.
0: Temperature Sensor Disabled.
1: Temperature Sensor Enabled.
1:0 Unused Read = 00b; Write = Don’t Care.
5.14. Voltage Reference Electrical Specifications
See Table 4.14 on page 72 for detailed Voltage Reference Electrical Specifications.
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Rev. 1.0